A/T Controls - Fail-safe Mode/Code CF33 Stored

SI B 24 10 07
Automatic Transmission

April 2007
Technical Service

SUBJECT
The Transmission is in "Fail-safe" mode with EGS Fault CF33 Stored

MODEL
E70 from SOP to 8/2007
E60, E61 produced 2/2007 to 8/2007
E90, E91, E92, E93 produced from 8/2006 to 8/2007

All with either the ZF 6HP19TU or 6HP26TU automatic transmissions

SITUATION

After a control module replacement, or complete vehicle reprogramming, the transmission is in fail-safe mode with fault: CF33 - no message from engine management stored in the EGS module. The fault entry cannot be cleared.

CAUSE

EGS software application

CORRECTION

Do not replace any parts.

Using DIS 49.0 and higher run a "Short test" and Perform the following test module:

Reset learning functions / S2460_GSLFR_TU - available using the following diagnostic path:

Service Functions / Transmission Control / Calibrations / Reset leaning functions

Afterwards turn the ignition off / lock vehicle / let vehicle enter sleep mode

It is now possible to clear the fault.

This problem is planned to be corrected with August 2007 and later production vehicles equipped with these ZF transmissions.

WARRANTY INFORMATION

Covered under the terms of the BMW New Vehicle Limited Warranty.

Defect Code: Refer to KSD

Labor Operation: Refer to KSD

Labor Allowance: Refer to KSD





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